Congratulations to the Mavericks and their owner, Mark Cuban. It should be no surprise. Mr. Cuban proved he could manage a Dairy Queen, though he couldn’t keep his mouth shut. But the Mavs are an old team. They hadn’t in all their years found anyone they could beat. Ever. And then there was the Heat. The Dallas Mavericks are N.B.A. champions. The Heat shouldn’t be too glum. They like themselves sufficiently, whether or not anyone else does, and I heard a report that ‘The Biggest Loser’ TV people are holding a casting call in Miami in just a few weeks. The Heat should be a lock for that.